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# expert

«expert» in Mova's school dictionary: **A person who knows a lot about a subject or is very…** — its meaning for a pupil, its sense in the lessons and examples, with 5 sentences of Mova's corpora that use it.

### part of speech

noun (an expert, experts); adjective (expert — very skilled)

### meaning for a pupil

1) A person who knows a lot about a subject or is very skilled at something. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/expert/#m1)

2) Very skilled or knowing a lot (an expert swimmer). [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/expert/#m2)

### sense in the lessons

In school pupils learn from experts (scientists, authors, visiting firefighters) and become «class experts» on a topic. In research and media lessons: information from real experts is more reliable, but check who the expert is and what they know. In everyday life you ask an expert — a doctor, an electrician — for things you can't do safely yourself. Phrases: expert on/in/at, become an expert, expert advice, ask an expert.

### examples

- My uncle is an expert on spiders. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/expert/#x1)
- She is an expert at chess. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/expert/#x2)
- Ask an expert before you touch electrical wires. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/expert/#x3)
- After the project, Sam was the class expert on volcanoes. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/expert/#x4)
- Experts say children need about ten hours of sleep. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/expert/#x5)
- He is an expert swimmer. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/expert/#x6)
- Practise a lot and one day you could be an expert too. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/expert/#x7)
- The Caliph took one of the olives, tasted it, and ordered the expert merchants to do the same. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/expert/#x8)

### note

Say «an expert» (vowel sound). «Expert on/in a subject», «expert at doing something». Stress: EX-pert. «Experts say…» online does not prove something is true — look for who they are.

### In the corpora

- [Chatbots can produce made-up cases, books or quotes that sound real; even experts must check them.](https://md.mova.elamur.ai/free/en/corpora/school/ai/20-news-court-cases-airline/6/)
- [Some tasks are moving to AI, new jobs appear too, and experts disagree on how much will change.](https://md.mova.elamur.ai/free/en/corpora/school/ai/21-news-deepfakes-history/3/)
- [Some jobs are changing as AI does some tasks, new jobs appear too, and experts disagree about how much will change.](https://md.mova.elamur.ai/free/en/corpora/school/ai/21-news-deepfakes-history/9/)
- [Some films use real controlled explosions, handled only by licensed experts with strict safety rules, while others add explosions by computer.](https://md.mova.elamur.ai/free/en/corpora/school/arts/25-special-effects-and-stunts/13/)
- [Owls are expert hunters with superb hearing, but crows and parrots solve much harder puzzles than owls.](https://md.mova.elamur.ai/free/en/corpora/school/biology/228-cartoon-pets-and-animal-myths-put-right/14/)

### Trees and pragmatics

[Every meaning and example of «expert» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/E/expert/), each sentence with its dependency tree and frames.